Posted on August 12, 2016 May 29, 2018 by FiTech EFI — 2 CommentsWhat is better – a dual plane or a single plane manifold? That is a better question for your engine builder – our systems work perfect on both so please choose the manifold that best fits your engine build. Post navigationPrevious post: What do I need to adjust/set on the Handheld Controller to start my engine?Next post: What is the advantage of Annular Discharge over the standard injector spray pattern? 2 comments on “What is better – a dual plane or a single plane manifold?” Per February 19, 2017 Hello I am currently building a CSB 383 with fitech. Engine should make about 420 horsepower. it’s a street engine. Should I use single or dual plane intake? Thanks Bryce - FiTech Tech Pro February 21, 2017 The intake design has no effect on how the fuel injection operates. It will work with both of them so you should be selecting the intake based on your engine build and use of the vehicle. If you are saying this is a street engine you would usually want all the bottom end torque you can get which is what a dual plane intake will provide.